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CAT:NONE; SFS:(13230022)(4636009)(39860400002)(376002)(396003)(136003)(346002)(451199015)(36840700001)(46966006)(40470700004)(8676002)(4744005)(36860700001)(44832011)(478600001)(186003)(70206006)(54906003)(70586007)(36756003)(41300700001)(86362001)(356005)(8936002)(7696005)(4326008)(26005)(81166007)(82310400005)(336012)(82740400003)(40480700001)(110136005)(16526019)(5660300002)(40460700003)(1076003)(6666004)(316002)(2906002)(426003)(47076005)(2616005)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Sep 2022 14:54:38.0479 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8c5b1574-c710-4104-4d73-08da9be134c4 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT004.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB5719 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On AMD Pink Sardine it's been observed that if another CM has run before the Linux CM that some registers may not match expectations which leads to a non-functional hotplug for PCIe devices. Explicitly set these registers that have been observed to cause problems with hotplug to the defaults of the USB4 spec. Mario Limonciello (2): thunderbolt: Explicitly reset plug events delay back to USB4 spec value thunderbolt: Explicitly enable lane adapter hotplug events at startup drivers/thunderbolt/switch.c | 5 +++++ drivers/thunderbolt/tb.h | 1 + drivers/thunderbolt/tb_regs.h | 1 + drivers/thunderbolt/usb4.c | 19 +++++++++++++++++++ 4 files changed, 26 insertions(+)